Serena Williams sister Venus is overjoyed to finally be an aunt.

The 35-year-old and her fiance Alexis Ohanian welcomed their little daughter to Earth on Friday (September 1st) and Aunt Venus can't wait to get started properly.

At the edge of the US Open, she spoke to 'ESPN'. The US Open tennis tournament is the fourth Grand Slam tournament of the year, but the 37-year-old tennis player was probably only thinking of her sister and her little niece. "I am so happy, words cannot describe it." She didn't want to reveal much, she skilfully evades questions about her sister. But she does reveal a little detail about the sisterly relationship. "We talk. We always talk. She is always behind me and encourages me. Every step, every game. Always."

Sounds like the two sisters are already very close. There is no question that Venus will also do a great job as an aunt.